aNatural gas as it is consumed; includes supplemental gaseous fuels that are commingled with natural gas.

iDistributed solar thermal and photovoltaic energy consumed in the industrial sector is included in residentialconsumption. For 1981 through 1992, includes fuel ethanol blended into motor gasoline but not shown in the motorgasoline column. Beginning in 2008, includes small amounts of solar and wind energy consumed by industrialplants with capacity of 1 megawatt or greater. Beginning in 1980, adjusted for the double-counting of supplementalgaseous fuels, which are included in both natural gas and the other fossil fuels from which they are mostly derived,but should be counted only once in net energy and total.

bLiquefied petroleum gases, includes ethane and olefins.

jIncurred in the generation, transmission, and distribution of electricity plus plant use and unaccounted forelectrical system energy losses. Pre-1990 estimates are not comparable to those for later years. See Section 6 ofTechnical Notes for an explanation of changes in methodology.

cBeginning in 1993, includes fuel ethanol blended into motor gasoline.

kWh = Kilowatthours. – – = Not applicable. NA = Not available.

dIncludes asphalt and road oil, kerosene, lubricants, and the 16 other petroleum products as described in theTechnical Notes, Section 4, "Other Petroleum Products."

Where shown, R = Revised data and (s) = Physical unit value less than 0.5 or Btu value less than 0.05.

Notes: Totals may not equal sum of components due to independent rounding. · The industrial sector includesindustrial combined-heat-and-power (CHP) and industrial electricity-only plants. · The continuity of these dataseries estimates may be affected by the changing data sources and estimation methodologies. See the TechnicalNotes for each type of energy.

fThere is a discontinuity in this time series between 1988 and 1989 due to the expanded coverage ofrenewable energy sources beginning in 1989.